20 citations · 58 across the 6 of their papers we have counts for
6 papers
Red Asymmetry of H Line Profiles during the flares on the active RS CVn-type star II Pegasi
Dongtao Cao, Shenghong Gu
Stellar coronal mass ejections (CMEs) have recently attracted much attention for their impacts on stellar evolution and surrounding exoplanets. RS CVn-type stars could produce larg…
A method of photometric data extraction for asteroids from time-domain surveys
Xiaoyun Xu, Xiaobing Wang, Karri Muinonen +9
The lightcurves of asteroids are essential for determining their physical characteristics, including shape, spin, size, and surface composition. However, most asteroids are missing…
Prominence activation, optical flare, and post-flare loops on the RS Canum Venaticorum star SZ Piscium
Dongtao Cao, Shenghong Gu, Jian Ge +7
We present the results of time-resolved high-resolution spectroscopic observations of the very active RS Canum Venaticorum (RS CVn) star SZ Piscium (SZ Psc), obtained during two co…
Magnetic activities on two single-lined RS Canum Venaticorum binaries IM Pegasi and Geminorum
Dongtao Cao, Shenghong Gu, F. Grundahl +1
We present the study on continuous high-resolution spectroscopic observations of two long-period single-lined RS Canum Venaticorum (RS CVn) binary stars IM Pegasi (IM Peg) and …
Prominence detection and chromosphere feature on the prototype RS CVn of active binary systems
Dongtao Cao, Shenghong Gu, U. Wolter +4
We present a study of high-resolution spectra of RS Canum Venaticorum (RS CVn), a prototype of active binary systems. Our data were obtained from 1998 to 2017 using different teles…
Investigation of stellar magnetic activity using variational autoencoder based on low-resolution spectroscopic survey
Yue Xiang, Shenghong Gu, Dongtao Cao
We apply the variational autoencoder (VAE) to the LAMOST-K2 low-resolution spectra to detect the magnetic activity of the stars in the K2 field. After the training on the spectra o…